Methylamine, N,N-dimethyl-

• Formula: C₃H₉N
• Molecular weight: 59.1103
• IUPAC Standard InChI: InChI=1S/C3H9N/c1-4(2)3/h1-3H3 Copy

  
• IUPAC Standard InChIKey: GETQZCLCWQTVFV-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-50-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Trimethylamine; Methanamine, N,N-dimethyl-; TMA; UN 1083; UN 1297
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • IR Spectrum
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
• Options:
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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  = ( • )

By formula: Li⁺ + C₃H₉N = (Li⁺ • C₃H₉N)

C₃H₁₀N⁺ +  = (C₃H₁₀N⁺ • )

By formula: C₃H₁₀N⁺ + C₃H₉N = (C₃H₁₀N⁺ • C₃H₉N)

C₃H₉Sn⁺ +  = (C₃H₉Sn⁺ • )

By formula: C₃H₉Sn⁺ + C₃H₉N = (C₃H₉Sn⁺ • C₃H₉N)

Free energy of reaction

(C₃H₁₀N⁺ •  • ) +  = (C₃H₁₀N⁺ • 2 • )

By formula: (C₃H₁₀N⁺ • H₂O • C₃H₉N) + H₂O = (C₃H₁₀N⁺ • 2H₂O • C₃H₉N)

Free energy of reaction

 +  = ( • )

By formula: K⁺ + C₃H₉N = (K⁺ • C₃H₉N)

C₃H₈N^- +  =

By formula: C₃H₈N^- + H⁺ = C₃H₉N

(C₃H₁₀N⁺ • ) +  = (C₃H₁₀N⁺ •  • )

By formula: (C₃H₁₀N⁺ • C₃H₉N) + CH₄O = (C₃H₁₀N⁺ • CH₄O • C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

(C₃H₁₀N⁺ • 2) +  = (C₃H₁₀N⁺ •  • 2)

By formula: (C₃H₁₀N⁺ • 2C₃H₉N) + H₂O = (C₃H₁₀N⁺ • H₂O • 2C₃H₉N)

Bond type: Hydrogen bond (positive ion to hydride)

(C₃H₁₀N⁺ •  • ) +  = (C₃H₁₀N⁺ • 2 • )

By formula: (C₃H₁₀N⁺ • CH₄O • C₃H₉N) + CH₄O = (C₃H₁₀N⁺ • 2CH₄O • C₃H₉N)

Bond type: Hydrogen bonds of the type NH+-O between organics

(C₃H₁₀N⁺ •  • ) +  = (C₃H₁₀N⁺ • 2 • )

By formula: (C₃H₁₀N⁺ • C₃H₉N • H₂O) + C₃H₉N = (C₃H₁₀N⁺ • 2C₃H₉N • H₂O)

(C₃H₁₀N⁺ • 2) +  = (C₃H₁₀N⁺ • 3)

By formula: (C₃H₁₀N⁺ • 2C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 3C₃H₉N)

(C₃H₁₀N⁺ • 3) +  = (C₃H₁₀N⁺ • 4)

By formula: (C₃H₁₀N⁺ • 3C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 4C₃H₉N)

(C₃H₁₀N⁺ • 4) +  = (C₃H₁₀N⁺ • 5)

By formula: (C₃H₁₀N⁺ • 4C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 5C₃H₉N)

(C₃H₁₀N⁺ • 5) +  = (C₃H₁₀N⁺ • 6)

By formula: (C₃H₁₀N⁺ • 5C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 6C₃H₉N)

 +  = ( • )

By formula: Na⁺ + C₃H₉N = (Na⁺ • C₃H₉N)

Free energy of reaction

(C₃H₁₀N⁺ • ) +  = (C₃H₁₀N⁺ • 2)

By formula: (C₃H₁₀N⁺ • C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 2C₃H₉N)

2 =  + 

By formula: 2C₂H₇N = CH₅N + C₃H₉N

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₃H₈N^- +  =

By formula: C₃H₈N^- + H⁺ = C₃H₉N

Ion clustering data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₃H₉Sn⁺ +  = (C₃H₉Sn⁺ • )

By formula: C₃H₉Sn⁺ + C₃H₉N = (C₃H₉Sn⁺ • C₃H₉N)

Free energy of reaction

C₃H₁₀N⁺ +  = (C₃H₁₀N⁺ • )

By formula: C₃H₁₀N⁺ + C₃H₉N = (C₃H₁₀N⁺ • C₃H₉N)

(C₃H₁₀N⁺ • ) +  = (C₃H₁₀N⁺ • 2)

By formula: (C₃H₁₀N⁺ • C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 2C₃H₉N)

(C₃H₁₀N⁺ • 2) +  = (C₃H₁₀N⁺ • 3)

By formula: (C₃H₁₀N⁺ • 2C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 3C₃H₉N)

(C₃H₁₀N⁺ • 3) +  = (C₃H₁₀N⁺ • 4)

By formula: (C₃H₁₀N⁺ • 3C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 4C₃H₉N)

(C₃H₁₀N⁺ • 4) +  = (C₃H₁₀N⁺ • 5)

By formula: (C₃H₁₀N⁺ • 4C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 5C₃H₉N)

(C₃H₁₀N⁺ • 5) +  = (C₃H₁₀N⁺ • 6)

By formula: (C₃H₁₀N⁺ • 5C₃H₉N) + C₃H₉N = (C₃H₁₀N⁺ • 6C₃H₉N)

(C₃H₁₀N⁺ •  • ) +  = (C₃H₁₀N⁺ • 2 • )

By formula: (C₃H₁₀N⁺ • C₃H₉N • H₂O) + C₃H₉N = (C₃H₁₀N⁺ • 2C₃H₉N • H₂O)

 +  = ( • )

By formula: K⁺ + C₃H₉N = (K⁺ • C₃H₉N)

 +  = ( • )

By formula: Li⁺ + C₃H₉N = (Li⁺ • C₃H₉N)

 +  = ( • )

By formula: Na⁺ + C₃H₉N = (Na⁺ • C₃H₉N)

Free energy of reaction

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Van Den Dool and Kratz RI, polar column, temperature ramp

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Van Den Dool and Kratz RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy
  T	Temperature
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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